su
"su" is a 2-letter English headword indexed on PlainSpell.
The verdict
“su” sits in 20 confusable pairs (corpus #8,094) as a noun. The look-alike neighbours are the real trap.
- #8,094
- frequency rank, English
- 6,566
- “S” headwords
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Alternative form of xu (“former Vietnamese currency”).
Corpus desk
Index EN-su · su · English
su · rank #8,094 · 0 variants · 20 confusables
- FREQ-COMMON #8,094
- LEN-SHORT 2 letters
- VOW-1 1 vowel
- CONFUS-HIGH 20 pairs
- VAR-0 0 variants
- BOOK-DENSE 6,566
- PHOTO-FINISH smoked
Nearest frequency peer: smoked (-1 rank slots)
Read with this headword: Spelling guide for this pattern
Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.
Frequency neighbours of confusable “su”
Peers at similar corpus weight, separate from look-alike pairs below
- Sharon
Sharon
91,910 corpus weight
- showcase
showcase
91,909 corpus weight
- smoked
smoked
91,908 corpus weight
- su
su
91,907 corpus weight
- subsidiary
subsidiary
91,906 corpus weight
- Tampa
Tampa
91,905 corpus weight
What this shows Bars place “su” against nearest ranked English headwords, not a reprint of the confusable-pair desk.
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | su |
| Language | English |
| Part of speech | Noun |
| Letters | 2 |
| Frequency rank | #8,094 |
| Misspellings tracked | 0 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Corpus rank beside confusables of “su”
Easy to mix with look-alikes
The spelling risk for su is neighbouring look-alikes ("SW", "SV", …), not just typos; it is anoun. Frequency #8,094 among 6,566 “S” headwords. Gloss: "Alternative form of xu (“former Vietnamese currency”).".
su doesn't appear in our generated misspelling index, which points to an orthography that plays by predictable English rules. It also participates in 20 confusable-pair relationships, "SW", "SV", "Sy", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.
Etymologically, the entry records: See xu. The correct English form is su, spelled S-U.
Definition
- 1Alternative form of xu (“former Vietnamese currency”).
Recorded use
Wiktionary examplesThese source excerpts show how su appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
100 su = 1 Vietnam dong
Old people pine for the days when a serving of rice cost a 100 su coin.
Etymology
See xu.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.